... , Linux, iPad / iPad 3G, iPad 2 / iPad 2 3G, iPhone 4, iPhone 3G S if upgraded to IOS4.Built-in Lithium Battery: 450mAh which can last for about ... waterproof, dustproof, anti-pollution, anti-acid, waterproof for silicone part.Work with PC and commerical mobile, it will be convenient to workSpecifications ...